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  • Shell V-Power


    Shell petrol station displaying V-Power brandShell V-Power is the brand name given to Shell's enhanced high specification fuels for road motor vehicles including Shell V-Power Nitro+ and Shell V-Power Diesel. Shell launched the fuel in March 2008 under the name Nitrogen-Enriched Shell V-Power, with nitrogen-containing detergents. Initially used for higher octane Super Unleaded petrol/gasoline (formerly known as Optimax in some regions), it is now additionally used for high specification diesel fuel.

  • REC-90


    Brighton, MI Sunoco Price sign advertising availability of Rec-90 Gasoline.REC-90 is an ethanol-free, 90 octane unleaded gasoline blend designed for use in recreational/marine engines which can be damaged by the ethanol found in other gasoline blends. It is also usable in some aviation engines and automotive engines, though it has not been thoroughly tested for cars and trucks. Unlike most stations in the plains states which carry ethanol-free 87 octane unleaded alongside 10% ethanol 87 octane unleaded, many states carry ethanol-free gasoline specifically marketed as recreational fuel designed for marine equipment and small engines. Pump grades at the Brighton, MI Sunoco, including Rec-90 ethanol-free 100% gasoline. Hose label at Kwik Trip location in Cross Plains, WI advertising that ethanol-free can safely be used in automotive engines.

  • U.S. State Fuel Octane Standards


    Most states do not mandate certain standard gasoline grade octane ratings. In the United States and Canada, octane ratings are in AKI, commonly shown as "(R+M)/2". All states require gas pump to be labeled with the correct octane level and nearly all states do regular testing to make sure gas stations are in compliance. A minimum 87 octane fuel is recommend for most vehicles produced since 1984. Older cars with carburetors could operate with lower octane fuel at higher elevations. Regardless of legality fuel with an octane rating of less than 87 is generally not offered for sale in most states. However 85 and 86 octane gasoline can still commonly be found in several rocky mountain states.

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